Literature DB >> 21588293

(E)-2-[4-(Dimethyl-amino)-styr-yl]-1-methyl-pyridinium 4-methyl-benzene-sulfonate monohydrate.

Suchada Chantrapromma, Kullapa Chanawanno, Hoong-Kun Fun.   

Abstract

The cation of the title compound, C(16)H(19)N(2) (+)·C(7)H(7)O(3)S(-)·H(2)O, exists in the E configuration with respect to the C=C double bond and is essentially planar, the dihedral angle between the pyridinium and benzene rings being 3.55 (13)°. In the crystal, π-conjugated planes of cations and anions are inclined to each other at 84.30 (11)°. The crystal structure is stabilized by O-H⋯O hydrogen bonds and weak C-H⋯O inter-actions, which link the cations, anions and water mol-ecules into chains along the b axis. These chains are stacked along the a axis by π-π inter-actions with centroid-centroid distances of 3.6032 (16) and 3.6462 (16) Å.

Entities:  

Year:  2010        PMID: 21588293      PMCID: PMC3007387          DOI: 10.1107/S1600536810026309

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For bond-length data, see Allen et al. (1987 ▶). For background to and applications of quarternary ammonium compounds and sulfonamides, see: Barlow et al. (1937 ▶); Ohkura et al. (2003 ▶); Pernak et al. (2001 ▶). For related structures, see: Chanawanno et al. (2010 ▶); Kobkeatthawin et al. (2009 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).

Experimental

Crystal data

C16H19N2C7H7O3S−·H2O M = 428.53 Triclinic, a = 7.3469 (9) Å b = 9.8860 (12) Å c = 15.5541 (19) Å α = 75.801 (3)° β = 79.438 (3)° γ = 76.865 (2)° V = 1056.8 (2) Å3 Z = 2 Mo Kα radiation μ = 0.19 mm−1 T = 100 K 0.47 × 0.13 × 0.06 mm

Data collection

Bruker APEXII DUO CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.919, T max = 0.989 15705 measured reflections 4122 independent reflections 3307 reflections with I > 2σ(I) R int = 0.045

Refinement

R[F 2 > 2σ(F 2)] = 0.053 wR(F 2) = 0.156 S = 1.11 4122 reflections 282 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.51 e Å−3 Δρmin = −0.56 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: SAINT (Bruker, 2009 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810026309/sj5034sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810026309/sj5034Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C16H19N2+·C7H7O3S·H2OZ = 2
Mr = 428.53F(000) = 456
Triclinic, P1Dx = 1.347 Mg m3
Hall symbol: -P 1Melting point = 468–469 K
a = 7.3469 (9) ÅMo Kα radiation, λ = 0.71073 Å
b = 9.8860 (12) ÅCell parameters from 4122 reflections
c = 15.5541 (19) Åθ = 1.4–26.0°
α = 75.801 (3)°µ = 0.19 mm1
β = 79.438 (3)°T = 100 K
γ = 76.865 (2)°Needle, orange
V = 1056.8 (2) Å30.47 × 0.13 × 0.06 mm
Bruker APEXII DUO CCD area-detector diffractometer4122 independent reflections
Radiation source: sealed tube3307 reflections with I > 2σ(I)
graphiteRint = 0.045
φ and ω scansθmax = 26.0°, θmin = 1.4°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −9→9
Tmin = 0.919, Tmax = 0.989k = −12→12
15705 measured reflectionsl = −19→19
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.053Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.156H atoms treated by a mixture of independent and constrained refinement
S = 1.11w = 1/[σ2(Fo2) + (0.069P)2 + 1.5338P] where P = (Fo2 + 2Fc2)/3
4122 reflections(Δ/σ)max = 0.001
282 parametersΔρmax = 0.51 e Å3
0 restraintsΔρmin = −0.56 e Å3
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K.
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.
xyzUiso*/Ueq
N11.0171 (3)0.9737 (2)0.12371 (15)0.0145 (5)
N2−0.1299 (3)0.8266 (3)0.39380 (16)0.0215 (5)
C11.1969 (4)0.9572 (3)0.08076 (18)0.0176 (6)
H1A1.26831.02560.07660.021*
C21.2745 (4)0.8414 (3)0.04353 (19)0.0198 (6)
H2A1.39760.83090.01430.024*
C31.1662 (4)0.7399 (3)0.05011 (18)0.0189 (6)
H3A1.21610.66060.02520.023*
C40.9842 (4)0.7579 (3)0.09382 (18)0.0170 (6)
H4A0.91150.69050.09750.020*
C50.9067 (4)0.8750 (3)0.13271 (18)0.0152 (5)
C60.7180 (4)0.8965 (3)0.18253 (18)0.0166 (6)
H6A0.67100.98210.20070.020*
C70.6089 (4)0.7978 (3)0.20334 (18)0.0177 (6)
H7A0.65660.71560.18120.021*
C80.4235 (4)0.8062 (3)0.25704 (18)0.0166 (5)
C90.3246 (4)0.6955 (3)0.26819 (19)0.0182 (6)
H9A0.38160.61740.24310.022*
C100.1460 (4)0.6991 (3)0.31509 (18)0.0168 (6)
H10A0.08600.62300.32230.020*
C110.0532 (4)0.8173 (3)0.35233 (18)0.0163 (5)
C120.1546 (4)0.9257 (3)0.34420 (18)0.0176 (6)
H12A0.09921.00260.37070.021*
C130.3347 (4)0.9203 (3)0.29778 (18)0.0172 (6)
H13A0.39800.99370.29350.021*
C140.9449 (4)1.1036 (3)0.16027 (19)0.0186 (6)
H14A0.83401.15630.13450.028*
H14B1.03981.16120.14600.028*
H14C0.91421.07740.22410.028*
C15−0.2224 (4)0.7057 (3)0.4121 (2)0.0236 (6)
H15A−0.22380.67870.35700.035*
H15B−0.34960.73090.44000.035*
H15C−0.15520.62750.45150.035*
C16−0.2284 (4)0.9532 (3)0.4263 (2)0.0248 (6)
H16A−0.22411.03530.37840.037*
H16B−0.16880.96260.47400.037*
H16C−0.35740.94550.44810.037*
S10.39079 (9)0.30482 (7)0.18364 (5)0.01550 (19)
O10.3624 (3)0.2330 (2)0.11664 (13)0.0202 (4)
O20.4315 (3)0.4458 (2)0.14332 (13)0.0214 (5)
O30.5235 (3)0.2178 (2)0.24342 (14)0.0205 (4)
C170.1685 (3)0.3327 (3)0.25164 (18)0.0138 (5)
C180.0064 (4)0.3932 (3)0.21068 (18)0.0157 (5)
H18A0.01530.42390.14880.019*
C19−0.1682 (4)0.4069 (3)0.26349 (19)0.0170 (6)
H19A−0.27670.44490.23640.020*
C20−0.1835 (4)0.3651 (3)0.35578 (19)0.0182 (6)
C21−0.0197 (4)0.3085 (3)0.39579 (19)0.0196 (6)
H21A−0.02800.28190.45780.024*
C220.1561 (4)0.2916 (3)0.34368 (18)0.0166 (6)
H22A0.26470.25290.37070.020*
C23−0.3743 (4)0.3757 (3)0.4126 (2)0.0266 (7)
H23A−0.35810.34180.47460.040*
H23B−0.44720.31900.39630.040*
H23C−0.43890.47300.40310.040*
O1W0.7344 (3)0.5643 (2)0.04598 (15)0.0251 (5)
H1W10.645 (7)0.524 (5)0.070 (3)0.056 (13)*
H2W10.699 (5)0.618 (4)−0.009 (3)0.033 (10)*
U11U22U33U12U13U23
N10.0088 (10)0.0153 (11)0.0197 (11)−0.0024 (9)−0.0005 (9)−0.0051 (9)
N20.0114 (12)0.0250 (13)0.0286 (13)−0.0059 (10)0.0045 (10)−0.0096 (10)
C10.0078 (12)0.0207 (14)0.0230 (14)−0.0019 (10)−0.0013 (10)−0.0038 (11)
C20.0083 (13)0.0234 (14)0.0237 (14)0.0021 (11)0.0016 (11)−0.0049 (11)
C30.0164 (14)0.0163 (13)0.0209 (14)0.0024 (11)−0.0021 (11)−0.0034 (11)
C40.0140 (13)0.0148 (13)0.0213 (14)−0.0014 (10)−0.0025 (11)−0.0032 (11)
C50.0115 (13)0.0154 (13)0.0180 (13)−0.0019 (10)−0.0030 (10)−0.0019 (10)
C60.0109 (13)0.0168 (13)0.0203 (14)−0.0003 (10)−0.0005 (10)−0.0040 (11)
C70.0113 (13)0.0174 (13)0.0231 (14)−0.0003 (10)−0.0018 (11)−0.0046 (11)
C80.0105 (13)0.0167 (13)0.0211 (14)−0.0016 (10)−0.0023 (10)−0.0022 (10)
C90.0136 (14)0.0154 (13)0.0251 (14)−0.0002 (11)−0.0034 (11)−0.0050 (11)
C100.0129 (13)0.0149 (13)0.0239 (14)−0.0069 (10)−0.0024 (11)−0.0026 (11)
C110.0102 (13)0.0192 (13)0.0179 (13)−0.0028 (10)−0.0011 (10)−0.0018 (10)
C120.0149 (13)0.0166 (13)0.0213 (14)−0.0028 (11)−0.0015 (11)−0.0052 (11)
C130.0117 (13)0.0175 (13)0.0221 (14)−0.0035 (10)−0.0024 (11)−0.0028 (11)
C140.0114 (13)0.0176 (13)0.0275 (15)−0.0020 (10)0.0016 (11)−0.0100 (11)
C150.0147 (14)0.0294 (16)0.0268 (15)−0.0090 (12)0.0022 (12)−0.0054 (12)
C160.0145 (14)0.0289 (16)0.0283 (16)−0.0032 (12)0.0053 (12)−0.0082 (13)
S10.0063 (3)0.0145 (3)0.0248 (4)−0.0030 (2)0.0034 (2)−0.0058 (3)
O10.0130 (10)0.0195 (10)0.0287 (11)−0.0047 (8)0.0046 (8)−0.0104 (8)
O20.0116 (10)0.0181 (10)0.0320 (11)−0.0049 (8)0.0060 (8)−0.0052 (8)
O30.0055 (9)0.0211 (10)0.0332 (11)0.0004 (7)−0.0020 (8)−0.0057 (8)
C170.0055 (12)0.0123 (12)0.0236 (14)−0.0031 (9)0.0029 (10)−0.0064 (10)
C180.0112 (13)0.0150 (13)0.0210 (14)−0.0029 (10)−0.0015 (10)−0.0040 (10)
C190.0086 (12)0.0130 (13)0.0296 (15)0.0001 (10)−0.0039 (11)−0.0059 (11)
C200.0087 (13)0.0195 (13)0.0269 (15)−0.0050 (10)0.0044 (11)−0.0086 (11)
C210.0153 (14)0.0233 (14)0.0196 (14)−0.0052 (11)0.0006 (11)−0.0043 (11)
C220.0091 (13)0.0171 (13)0.0244 (14)−0.0032 (10)−0.0028 (10)−0.0049 (11)
C230.0117 (14)0.0357 (17)0.0310 (16)−0.0056 (12)0.0055 (12)−0.0098 (13)
O1W0.0169 (11)0.0311 (12)0.0287 (12)−0.0126 (9)0.0002 (9)−0.0038 (10)
N1—C11.360 (3)C14—H14A0.9600
N1—C51.372 (3)C14—H14B0.9600
N1—C141.480 (3)C14—H14C0.9600
N2—C111.374 (3)C15—H15A0.9600
N2—C151.450 (4)C15—H15B0.9600
N2—C161.454 (4)C15—H15C0.9600
C1—C21.371 (4)C16—H16A0.9600
C1—H1A0.9300C16—H16B0.9600
C2—C31.390 (4)C16—H16C0.9600
C2—H2A0.9300S1—O31.454 (2)
C3—C41.378 (4)S1—O21.4553 (19)
C3—H3A0.9300S1—O11.464 (2)
C4—C51.396 (4)S1—C171.780 (3)
C4—H4A0.9300C17—C221.381 (4)
C5—C61.456 (4)C17—C181.396 (4)
C6—C71.343 (4)C18—C191.389 (4)
C6—H6A0.9300C18—H18A0.9300
C7—C81.458 (4)C19—C201.384 (4)
C7—H7A0.9300C19—H19A0.9300
C8—C131.402 (4)C20—C211.395 (4)
C8—C91.406 (4)C20—C231.511 (4)
C9—C101.377 (4)C21—C221.392 (4)
C9—H9A0.9300C21—H21A0.9300
C10—C111.411 (4)C22—H22A0.9300
C10—H10A0.9300C23—H23A0.9600
C11—C121.407 (4)C23—H23B0.9600
C12—C131.383 (4)C23—H23C0.9600
C12—H12A0.9300O1W—H1W10.83 (5)
C13—H13A0.9300O1W—H2W10.94 (4)
C1—N1—C5121.8 (2)H14A—C14—H14B109.5
C1—N1—C14117.0 (2)N1—C14—H14C109.5
C5—N1—C14121.2 (2)H14A—C14—H14C109.5
C11—N2—C15120.3 (2)H14B—C14—H14C109.5
C11—N2—C16120.6 (2)N2—C15—H15A109.5
C15—N2—C16118.9 (2)N2—C15—H15B109.5
N1—C1—C2121.1 (2)H15A—C15—H15B109.5
N1—C1—H1A119.5N2—C15—H15C109.5
C2—C1—H1A119.5H15A—C15—H15C109.5
C1—C2—C3118.9 (2)H15B—C15—H15C109.5
C1—C2—H2A120.5N2—C16—H16A109.5
C3—C2—H2A120.5N2—C16—H16B109.5
C4—C3—C2119.4 (2)H16A—C16—H16B109.5
C4—C3—H3A120.3N2—C16—H16C109.5
C2—C3—H3A120.3H16A—C16—H16C109.5
C3—C4—C5121.5 (2)H16B—C16—H16C109.5
C3—C4—H4A119.3O3—S1—O2113.73 (11)
C5—C4—H4A119.3O3—S1—O1113.30 (12)
N1—C5—C4117.3 (2)O2—S1—O1111.86 (12)
N1—C5—C6118.9 (2)O3—S1—C17106.05 (12)
C4—C5—C6123.8 (2)O2—S1—C17105.69 (11)
C7—C6—C5122.8 (2)O1—S1—C17105.35 (11)
C7—C6—H6A118.6C22—C17—C18120.5 (2)
C5—C6—H6A118.6C22—C17—S1120.3 (2)
C6—C7—C8126.8 (3)C18—C17—S1119.2 (2)
C6—C7—H7A116.6C19—C18—C17119.1 (2)
C8—C7—H7A116.6C19—C18—H18A120.4
C13—C8—C9117.2 (2)C17—C18—H18A120.4
C13—C8—C7123.7 (2)C20—C19—C18121.2 (2)
C9—C8—C7119.0 (2)C20—C19—H19A119.4
C10—C9—C8122.1 (2)C18—C19—H19A119.4
C10—C9—H9A119.0C19—C20—C21118.9 (2)
C8—C9—H9A119.0C19—C20—C23120.9 (3)
C9—C10—C11120.6 (2)C21—C20—C23120.2 (3)
C9—C10—H10A119.7C22—C21—C20120.6 (3)
C11—C10—H10A119.7C22—C21—H21A119.7
N2—C11—C12121.5 (2)C20—C21—H21A119.7
N2—C11—C10121.1 (2)C17—C22—C21119.6 (2)
C12—C11—C10117.4 (2)C17—C22—H22A120.2
C13—C12—C11121.5 (2)C21—C22—H22A120.2
C13—C12—H12A119.3C20—C23—H23A109.5
C11—C12—H12A119.3C20—C23—H23B109.5
C12—C13—C8121.1 (2)H23A—C23—H23B109.5
C12—C13—H13A119.5C20—C23—H23C109.5
C8—C13—H13A119.5H23A—C23—H23C109.5
N1—C14—H14A109.5H23B—C23—H23C109.5
N1—C14—H14B109.5H1W1—O1W—H2W1105 (4)
C5—N1—C1—C20.8 (4)C9—C10—C11—N2175.4 (3)
C14—N1—C1—C2−178.9 (3)C9—C10—C11—C12−3.8 (4)
N1—C1—C2—C30.1 (4)N2—C11—C12—C13−176.0 (3)
C1—C2—C3—C4−0.1 (4)C10—C11—C12—C133.1 (4)
C2—C3—C4—C5−0.8 (4)C11—C12—C13—C8−0.1 (4)
C1—N1—C5—C4−1.7 (4)C9—C8—C13—C12−2.3 (4)
C14—N1—C5—C4178.1 (2)C7—C8—C13—C12176.7 (3)
C1—N1—C5—C6177.6 (2)O3—S1—C17—C228.8 (2)
C14—N1—C5—C6−2.6 (4)O2—S1—C17—C22−112.3 (2)
C3—C4—C5—N11.7 (4)O1—S1—C17—C22129.2 (2)
C3—C4—C5—C6−177.6 (3)O3—S1—C17—C18−169.54 (19)
N1—C5—C6—C7−172.2 (3)O2—S1—C17—C1869.4 (2)
C4—C5—C6—C77.1 (4)O1—S1—C17—C18−49.1 (2)
C5—C6—C7—C8176.3 (3)C22—C17—C18—C19−2.3 (4)
C6—C7—C8—C13−2.3 (4)S1—C17—C18—C19176.08 (19)
C6—C7—C8—C9176.7 (3)C17—C18—C19—C201.6 (4)
C13—C8—C9—C101.6 (4)C18—C19—C20—C210.1 (4)
C7—C8—C9—C10−177.4 (3)C18—C19—C20—C23−177.9 (2)
C8—C9—C10—C111.5 (4)C19—C20—C21—C22−1.3 (4)
C15—N2—C11—C12−171.6 (3)C23—C20—C21—C22176.7 (2)
C16—N2—C11—C123.5 (4)C18—C17—C22—C211.1 (4)
C15—N2—C11—C109.3 (4)S1—C17—C22—C21−177.2 (2)
C16—N2—C11—C10−175.6 (3)C20—C21—C22—C170.7 (4)
D—H···AD—HH···AD···AD—H···A
O1W—H1W1···O20.83 (5)1.96 (5)2.774 (3)170 (4)
O1W—H2W1···O1i0.94 (4)1.99 (4)2.906 (3)167 (3)
C1—H1A···O1ii0.932.553.424 (3)157
C2—H2A···O1iii0.932.543.382 (4)150
C4—H4A···O1W0.932.353.222 (4)157
C6—H6A···O3iv0.932.533.456 (4)176
C9—H9A···O20.932.493.376 (3)158
C13—H13A···O3iv0.932.493.390 (4)164
C14—H14B···O1ii0.962.563.479 (4)161
C22—H22A···O30.932.512.894 (3)105
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1W—H1W1⋯O20.83 (5)1.96 (5)2.774 (3)170 (4)
O1W—H2W1⋯O1i0.94 (4)1.99 (4)2.906 (3)167 (3)
C1—H1A⋯O1ii0.932.553.424 (3)157
C2—H2A⋯O1iii0.932.543.382 (4)150
C4—H4A⋯O1W0.932.353.222 (4)157
C6—H6A⋯O3iv0.932.533.456 (4)176
C9—H9A⋯O20.932.493.376 (3)158
C13—H13A⋯O3iv0.932.493.390 (4)164
C14—H14B⋯O1ii0.962.563.479 (4)161

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .

  5 in total

1.  Synthesis and anti-microbial activities of some pyridinium salts with alkoxymethyl hydrophobic group.

Authors:  J Pernak; J Kalewska; H Ksycińska; J Cybulski
Journal:  Eur J Med Chem       Date:  2001 Nov-Dec       Impact factor: 6.514

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  (E)-2-[4-(Dimethyl-amino)styr-yl]-1-methyl-quinolinium 4-methyl-benzene-sulfonate monohydrate.

Authors:  Thawanrat Kobkeatthawin; Thitipone Suwunwong; Suchada Chantrapromma; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-12-10

4.  Analysis of structural features of bis-quaternary ammonium antimicrobial agents 4,4'-(alpha,omega-polymethylenedithio)bis (1-alkylpyridinium iodide)s using computational simulation.

Authors:  Kazuto Ohkura; Akiko Sukeno; Keiko Yamamoto; Hideaki Nagamune; Takuya Maeda; Hiroki Kourai
Journal:  Bioorg Med Chem       Date:  2003-11-17       Impact factor: 3.641

5.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  5 in total
  9 in total

1.  2-[(E)-2-(4-Eth-oxy-phen-yl)ethen-yl]-1-methyl-pyridinium 4-chloro-benzene-sulfonate monohydrate.

Authors:  Suchada Chantrapromma; Kullapa Chanawanno; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-01-29

2.  1-Methyl-2-[(E)-2,4,5-trimeth-oxy-styr-yl]-pyridinium iodide.

Authors:  Charoensak Mueangkeaw; Suchada Chantrapromma; Pumsak Ruanwas; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-11-06

3.  2-[(E)-4-(Dimethyl-amino)-styr-yl]-1-methyl-pyridinium 4-chloro-benzene-sulfonate monohydrate.

Authors:  Hoong-Kun Fun; Kullapa Chanawanno; Suchada Chantrapromma
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-10-31

4.  (E)-2-[4-(Dimethyl-amino)-styr-yl]-1-methyl-pyridinium triiodide.

Authors:  Hoong-Kun Fun; Kullapa Chanawanno; Suchada Chantrapromma
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-07-30

5.  1-Methyl-2-[(E)-2,4,5-trimeth-oxy-styr-yl]pyridinium 4-meth-oxy-benzene-sulfonate monohydrate.

Authors:  Hoong-Kun Fun; Charoensak Mueangkeaw; Pumsak Ruanwas; Suchada Chantrapromma
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-03-12

6.  4-Chloro-anilinium 4-methyl-benzene-sulfonate.

Authors:  Jerry P Jasinski; James A Golen; A S Praveen; H S Yathirajan; B Narayana
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-11-12

7.  3-Chloro-anilinium 4-methyl-benzene-sulfonate.

Authors:  Jerry P Jasinski; James A Golen; A S Praveen; H S Yathirajan; B Narayana
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-10-12

8.  3-Fluoro-anilinium 4-methyl-benzene-sulfonate.

Authors:  Jerry P Jasinski; James A Golen; A S Praveen; H S Yathirajan; B Narayana
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-10-12

9.  2-[(E)-2-(4-Meth-oxy-phen-yl)ethen-yl]-1-methyl-pyridinium iodide.

Authors:  K Senthil; S Kalainathan; A Rubankumar; V Ramkumar; Jiban Podder
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2013-11-30
  9 in total

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